HUT71504A - Process of making an alkenyl aromatic foam - Google Patents

Process of making an alkenyl aromatic foam

Info

Publication number
HUT71504A
HUT71504A HU9501134A HU9501134A HUT71504A HU T71504 A HUT71504 A HU T71504A HU 9501134 A HU9501134 A HU 9501134A HU 9501134 A HU9501134 A HU 9501134A HU T71504 A HUT71504 A HU T71504A
Authority
HU
Hungary
Prior art keywords
foam
bodies
alkenyl aromatic
polymer material
making
Prior art date
Application number
HU9501134A
Other languages
Hungarian (hu)
Other versions
HU9501134D0 (en
HU216543B (en
Inventor
Chung Park
Kyung Suh
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of HU9501134D0 publication Critical patent/HU9501134D0/en
Publication of HUT71504A publication Critical patent/HUT71504A/en
Publication of HU216543B publication Critical patent/HU216543B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/141—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/127—Mixtures of organic and inorganic blowing agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16—Making expandable particles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/03—Extrusion of the foamable blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/06—CO2, N2 or noble gases
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/04—Foams characterised by their properties characterised by the foam pores
    • C08J2205/052—Closed cells, i.e. more than 50% of the pores are closed
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene

Abstract

Disclosed is a process for making closed-cell, alkenyl aromatic polymer foam packing bodies or foam strands. An alkenyl aromatic polymer material is heated to form a melt polymer material. A blowing agent is incorporated into the melt polymer material at an elevated pressure to form a foamable gel. The blowing agent has 20 weight percent or more of a first blowing agent selected from the group consisting of carbon dioxide and ethane. The foamable gel is extruded through a die to form a foam strand. The foam strand is optionally pelletized to form a plurality of foam bodies. The bodies are further expanded by exposing them one or more times to heated air or steam. Preferably, the strands or bodies are allowed to age for a preselected period of time before and between subsequent expansions. The use of carbon dioxide and/or ethane as blowing agents allows the reduction or elimination of certain blowing agents dassified as volatile organic contaminants, which are currently being employed commercially in making foam bodies.
HU9501134A 1992-10-23 1993-09-17 Process of making an alkenyl aromatic foam packing bodies and foam strands HU216543B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96591792A 1992-10-23 1992-10-23
US08/059,718 US5288740A (en) 1992-10-23 1993-05-11 Process for making alkenyl aromatic foam packing bodies with carbon dioxide and/or ethane blowing agent systems

Publications (3)

Publication Number Publication Date
HU9501134D0 HU9501134D0 (en) 1995-06-28
HUT71504A true HUT71504A (en) 1995-12-28
HU216543B HU216543B (en) 1999-07-28

Family

ID=26739099

Family Applications (1)

Application Number Title Priority Date Filing Date
HU9501134A HU216543B (en) 1992-10-23 1993-09-17 Process of making an alkenyl aromatic foam packing bodies and foam strands

Country Status (11)

Country Link
US (1) US5288740A (en)
EP (2) EP0665865B1 (en)
JP (1) JP3295759B2 (en)
KR (1) KR100284215B1 (en)
AT (1) ATE180002T1 (en)
CA (1) CA2145399A1 (en)
DE (1) DE69324927T2 (en)
ES (1) ES2131121T3 (en)
GR (1) GR3030691T3 (en)
HU (1) HU216543B (en)
WO (1) WO1994010232A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5411683B1 (en) * 1993-08-20 2000-08-01 Sweetheart Cup Co Method for making thermoplastic foam with combined 1,1-difluoroethane and co2 blowing agent
DE4416863A1 (en) * 1994-05-13 1995-11-16 Basf Ag Expandable styrene polymers
DE4445140A1 (en) * 1994-12-17 1996-06-20 Basf Ag Carbon dioxide blown styrene polymer foam
US6245823B1 (en) 1995-10-20 2001-06-12 Free-Flow Packaging International, Inc. Composition and blowing agent for making foamed polyethylene material
US5670552A (en) * 1995-12-18 1997-09-23 W. R. Grace & Co.-Conn. Foam and process for producing foam using a carbon dioxide blowing agent
EP0921148A1 (en) 1997-12-08 1999-06-09 Dow Deutschland Inc. Low density strand foams
US6123881A (en) * 1998-09-16 2000-09-26 Owens Corning Fiberglas Technology, Inc. Process for producing extruded foam products having polystyrene blends with high levels of CO2 as a blowing agent
US6187831B1 (en) 1998-09-16 2001-02-13 Owens Corning Fiberglas Technology, Inc. Process for producing extruded foam products with higher levels of CO2 as a blowing agent
US6093352A (en) * 1998-09-16 2000-07-25 Owens Corning Fiberglas Technology, Inc. Process for producing foam by monitoring key process parameters
KR100595337B1 (en) 1998-10-21 2006-07-03 오웬스 코닝 Process for producing extruded foam
GB2385553B (en) * 1998-10-28 2003-10-15 Dart Container Method for making a corrugation-free foam and foams made by the method
GB2388070B (en) * 1998-10-28 2003-12-10 Dart Container Thermoplastic corrugation-free foam
US6428297B1 (en) 1998-10-28 2002-08-06 Dart Container Corporation Apparatus for making a corrugation-free foam
US6403663B1 (en) 1999-09-20 2002-06-11 North Carolina State University Method of making foamed materials using surfactants and carbon dioxide
CA2598387A1 (en) * 2005-03-18 2006-09-28 Dow Global Technology Inc. Extrusion die plate
WO2009155066A2 (en) * 2008-05-28 2009-12-23 The Ohio State University Research Foundation Surfactant-free synthesis and foaming of liquid blowing agent-containing activated carbon-nano/microparticulate polymer composites
DE102015000393A1 (en) 2014-01-21 2015-07-23 Frank Becher Process for the preparation of closed-cell products with hollow cells, by means of which the pressure in the cells can be increased or reduced in a controlled manner during foaming, and also products which are produced by this process
RU2682609C2 (en) 2015-01-30 2019-03-19 ВЕРСАЛИС С.п.А. Foamed compositions of vinyl aromatic polymers

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1229722B (en) * 1957-11-29 1966-12-01 Dow Chemical Co Process for the production of foamable molding compounds from aromatic vinyl polymers
US3121132A (en) * 1961-12-18 1964-02-11 Koppers Co Inc Stress relieving expandable plastic particles
US3481455A (en) * 1968-10-10 1969-12-02 Free Flow Packaging Corp Free-flowing packing material of low bulk density
US3632705A (en) * 1970-06-04 1972-01-04 Free Flow Packaging Corp Method for manufacturing free flow packing materials of low bulk density
US3697454A (en) * 1970-08-27 1972-10-10 Sinclair Koppers Co Foamed polymer particles of distinctive shape and method of making same
US3723237A (en) * 1971-02-16 1973-03-27 Free Flow Packaging Corp Packing material and method
US3932569A (en) * 1972-01-31 1976-01-13 Free-Flow Packaging Corporation Method for producing free-flow interlocking foamed packing material
US3855053A (en) * 1972-01-31 1974-12-17 Free Flow Packaging Corp Improved packing material
US3819544A (en) * 1973-02-23 1974-06-25 Arco Polymers Inc Foamed particles for loose fill packaging
DE2848338A1 (en) * 1978-11-08 1980-05-22 Hoechst Ag FREE-FLOWING PACKING MATERIAL MADE OF FOAMED PLASTIC
US4424287A (en) * 1980-06-10 1984-01-03 Mobil Oil Corporation Polymer foam process
US4455272A (en) * 1982-03-29 1984-06-19 Standard Oil Company (Indiana) Method of extruding a polystyrene foam using both a physical blowing agent and water
IT1163386B (en) * 1983-05-19 1987-04-08 Montedison Spa PROCEDURE FOR THE PRODUCTION OF EXPANDABLE GRANULES OF THERMOPLASTIC POLYMERS AND RELATED EQUIPMENT
DE3435440A1 (en) * 1983-12-10 1985-06-20 Hoechst Ag, 6230 Frankfurt FOAMABLE PLASTIC GRANULES AND PACKAGING MATERIAL MADE THEREOF
US4657715A (en) * 1984-12-31 1987-04-14 Mobil Oil Corporation Process for preparing smooth skinned extruded foams with water-organic blowing agent
DE3503057A1 (en) * 1985-01-30 1986-07-31 Hoechst Ag, 6230 Frankfurt FOAMABLE PLASTIC GRANULES AND PACKAGING MATERIAL MADE THEREOF
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Also Published As

Publication number Publication date
GR3030691T3 (en) 1999-11-30
EP0903369A1 (en) 1999-03-24
EP0665865A1 (en) 1995-08-09
KR950704409A (en) 1995-11-20
EP0665865B1 (en) 1999-05-12
WO1994010232A1 (en) 1994-05-11
KR100284215B1 (en) 2001-03-02
JP3295759B2 (en) 2002-06-24
DE69324927T2 (en) 1999-09-16
HU9501134D0 (en) 1995-06-28
CA2145399A1 (en) 1994-05-11
JPH08502544A (en) 1996-03-19
ES2131121T3 (en) 1999-07-16
HU216543B (en) 1999-07-28
DE69324927D1 (en) 1999-06-17
US5288740A (en) 1994-02-22
ATE180002T1 (en) 1999-05-15
EP0665865A4 (en) 1996-05-29

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Legal Events

Date Code Title Description
HMM4 Cancellation of final prot. due to non-payment of fee